USB 5V to 21V Step-Up Converter Cable

USB step-up converter cable designed to convert standard 5V USB power into stable 21V output for powering electronic devices and charging compatible equipment. Built with an integrated DC-DC boost converter for reliable voltage conversion and compact portable use.

Suitable for battery-powered devices, LED lighting, DIY electronics, portable tools, work lamps, fans, routers, and custom 21V projects. The cable can be powered from USB adapters, laptops, car chargers, or power banks.

Available with multiple DC connector sizes:

• 5.5 × 2.1 mm

Available in black and white cable versions.

Specifications:

• Input voltage: 5V USB
• Output voltage: 21V
• Output current: approx. 0.3A
• Type: DC-DC boost converter cable
• Power source: USB / Power Bank

Advantages:

• Stable 5V to 21V conversion
• Works from power banks
• Compact portable design
• Multiple DC connector options
• Ideal for DIY electronics